MDKSA-2005:088

Problem description

A number of security vulnerabilities were fixed in the Mozilla Firefox
1.0.4 and Mozilla Suite 1.7.8 releases. Patches have been backported
where appropriate; Corporate 3.0 is receiving the new Mozilla Suite
1.7.8 release.
The following issues have been fixed in both Mozilla Firefox and
Mozilla Suite:
- A flaw in the Javascript regular expression handling could lead to
a disclosure of browser memory, potentially exposing private data from
web pages viewed, passwords, or similar data sent to other web pages.
It could also crash the browser itself (CAN-2005-0989, MFSA 2005-33)
- With manual Plugin install, it was possible for the Plugin to execute
javascript code with the installing user's privileges (CAN-2005-0752 and
MFSA 2005-34)
- The popup for showing blocked javascript used the wrong privilege
context which could be sued for privilege escalation (CAN-2005-1153 and
MFSA 2005-35)
- Cross-site scripting through global scope pollution could lead an
attacker to being able to run code in foreign websites context, leading
to the potential sniffing of information or performing actions in that
context (CAN-2005-1154 and MFSA 2005-36)
- Code execution through javascript via favicons ("firelinking") could
be used for privilege escalation (CAN-2005-1155 and MFSA 2005-37)
- Search plugin cross-site scripting ("firesearching") (CAN-2005-1156,
CAN-2005-1157, and MFSA 2005-38)
- Arbitrary code execution via the Firefox sidebar panel II
(CAN-2005-1158 and MFSA 2005-39)
- Missing Install object instance checks (CAN-2005-1159 and
MFSA 2005-40)
- Privilege escalation via DOM property overrides (CAN-2005-1160 and
MFSA 2005-41)
- Code execution via javacript: IconURL (MFSA 2005-42)
- Security check bypass by wrapping a javascript: URL in the view-source:
pseudo protocol (MFSA 2005-43)
- Privilege escalation via non-DOM property overrides (MFSA 2005-44)
In addition to the vulnerabilities previously noted, the following
issues have been fixed in the Mozilla Suite 1.7.2 packages:
- Bypass restriction on opening privileged XUL (CAN-2005-0401 and
MSF 2005-32)
- Arbitrary code execution via a GIF processing error when parsing
obsolete Netscape extension 2 leading to an exploitable heap overrun
(CAN-2005-0401 and MFSA 2005-32)
- International Domain Name support could allow for characters that
look similar to other english letters to be used in constructing
nearly perfect phishing sites (MFSA 2005-29)
- Predictable plugin temporary directory name (MFSA 2005-28)
- Plugins can be used to load privileged content into a frame
(CAN-2005-0527 and MFSA 2005-27)
- Cross-site scripting attack via dropping javascript: links on
a tab (MFSA 2005-26)
- Image dragging-and-drop from a web page to the desktop preserve their
original name and extension; if this were an executable extension then
the file would be executed rather than opened in a media application
(MFSA 2005-25)
- HTTP authentication prompt tab spoofing (MFSA 2005-24)
- Download dialog source can be disguised by using a host name long
enough that most significant parts are truncated, allowing a malicious
site to spoof the origin of the file (MFSA 2005-23)
- Download dialog spoofing via supplied Content-Disposition header
could allow for a file to look like a safe file (ie. a JPEG image) and
when downloaded saved with an executable extension (MFSA 2005-22)
- XSLT can include stylesheets from arbitrary hosts (MFSA 2005-20)
- Memory handling flaw in Mozilla string classes that could overwrite
memory at a fixed location if reallocation fails during string growth
(MFSA 2005-18)
- Install source spoofing with user:pass@host (MFSA 2005-17)
- Spoofing download and security dialogs with overlapping windows
(MFSA 2005-16)
- It is possible for a UTF8 string with invalid sequences to trigger a
heap overflow of converted Unicode data (MFSA 2005-15)
- SSL "secure site" indicator spoofing (MFSA 2005-14)
- Mozilla mail clients responded to cookie requests accompanying
content loaded over HTTP, ignoring the setting of the preference
"network.cookie.disableCookieForMailNews" which could be used to
track people (MFSA 2005-11)
- Browser responds to proxy authentication requests from non-proxy
servers (SSL/HTTPS) (MFSA 2005-09)
- Snythetic middle-click event can steal clipboard contents
(MFSA 2005-08)
- In windows with multiple tabs, malicious content in a background tab
can attempt to steal information intended for the topmost tab by
popping up a prompt dialog that appears to come from the trusted site,
or by silently redirecting input focus to a background tab hoping to
catch the user inputting something sensitive (MFSA 2005-05)
- Secure site lock can be spoofed with "view-source:" (MFSA 2005-04)
- An insecure page triggering a load of a binary file from a secure
server will cause the SSL lock icon to appear; the certificate
information is that of the binary file's host and the location bar URL
shows the original insecure page (MFSA 2005-03)
- Temporary files are saved with world-readable permissions
(MFSA 2005-02)
- A vulnerability in the NNTP handling code could cause a heap overflow
and execute arbitrary code on the client machine (isec-0020)
- A number of other minor bugs were fixed as well.
Mandriva recommends all users to upgrade to these packages immediately.